ViewHistory - C#

// DocumentNOW V2 ViewHistory example  // force TLS 1.2 if .net < 4.6 ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;  Guid accountContextID = new Guid(<fromYourAccount>); Guid documentID = new Guid(<savedFromYourSubmission>); Guid authToken = new Guid(<savedFromYourSubmission>);  // assuming we set the namespace on the service proxy to DocNow ... DocNow.ViewHistoryServiceClient client = new DocNow.ViewHistoryServiceClient(); DocNow.DocumentHistoryView request = new DocNow.DocumentHistoryView();  request.Id = documentID;             request.AuthToken = authToken; request.ContextIdentifier = accountContextID; DocNow.DocumentHistoryViewResult[] historyresults = client.ViewHistory(new DocNow.DocumentHistoryView[] { request });  if (historyresults.Length > 0) {     if (historyresults[0].Exceptions != null)     {         StringBuilder sb = new StringBuilder();         foreach (DocNow.HistoryViewException exception in historyresults[0].Exceptions)         {             sb.AppendFormat("{0} : {1}{2}", exception.Severity.ToString(), exception.Value, Environment.NewLine);         } 	    Console.WriteLine(sb.ToString());     }     else     {         foreach(DocNow.DocumentEvent docevent in historyresults[0].Events)         {             Console.WriteLine($"{docevent.Date.ToString()} : {docevent.Details}");         }     } }